How get 2 side image?

[ulises58]

Since I can get the image from both sides, it usually only lets me have one side of the image, but I don't know how to tell it to output both. @Luomusha ?

[Luomusha]

According to the twain-specification, you need to set Capability : CAP_DUPLEX

This is how the method should be called

session.setCapability(CAP_DUPLEX,  TWDX_2PASSDUPLEX)

However, this method “setCapability” has not been implemented yet.
I don't have a scanner now.

[marchbold]

Any plans to implement setCapability?